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Audi S4 Engine Parts & Accessories

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Audi B8/B8.5 S4/S5 Carbon Fiber Left Side Engine Bay Cover

ES#3570284 - 023149ecs02KT - Audi B8/B8.5 S4/S5 Carbon Fiber Left Side Engine Bay Cover - Cover up unsightly under hood components with carbon fiber style! - ECS - Audi

Cover up unsightly under hood components with carbon fiber style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3570284
Mfg#:
023149ECS02KT
Ships on Aug 31, 2026
Auto Notify
ON SALE! SAVE 15%
$241.99

This product was last offered at the strikethrough price on
06-13-2026

$205.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#4299103 - 06E905115G - Ignition Coil - Priced Each - Keep your engine running smooth - Bremi - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bremi - Corporate Logo
ES#:
4299103
Mfg#:
06E905115G
In Stock at Vendor
$27.99

This product was last offered at the strikethrough price on
06-12-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Inlet Kit - Carbon Fiber - Audi B8 S4/S5 3.0T

ES#2836833 - 000931ecs02aKT - Supercharger Inlet Kit - Carbon Fiber - Audi B8 S4/S5 3.0T - Replace the accordion throttle body hose with a smooth carbon fiber tube - ECS - Audi

Replace the accordion throttle body hose with a smooth carbon fiber tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2836833
Mfg#:
000931ECS02AKT
In Stock
ON SALE! SAVE 15%
$252.99

This product was last offered at the strikethrough price on
06-13-2026

$215.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KOMPACT EM BOV VR18 Plum Back

ES#4745487 - TS-0223-1279 - KOMPACT EM BOV VR18 Plum Back - Seamlessly install a Kompact EM Valve without the need for adaptors, hoses, or additional assembly. - TurboSmart - Audi

Seamlessly install a Kompact EM Valve without the need for adaptors, hoses, or additional assembly. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TurboSmart - Corporate Logo
ES#:
4745487
Mfg#:
TS-0223-1279
In Stock
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$309.99

This product was last offered at the strikethrough price on
06-13-2026

$278.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Timing Chain Tensioner - Left

ES#4781430 - 06E109217AM - Upper Timing Chain Tensioner - Left - Applies tension to the upper left timing chain - Bremmen Parts - Audi

Applies tension to the upper left timing chain affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

From the 2013 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4781430
Mfg#:
06E109217AM
In Stock
ON SALE! SAVE 20%
$120.99

This product was last offered at the strikethrough price on
05-02-2026

$96.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Kit

ES#3183650 - 06e117021gKT - Oil Cooler Kit - Includes oil cooler, gasket, and hardware for a complete swap - Assembled By ECS - Audi

Includes oil cooler, gasket, and hardware for a complete swap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3183650
Mfg#:
06E117021GKT
In Stock
ON SALE! SAVE 19%
$122.99

This product was last offered at the strikethrough price on
05-02-2026

$99.82 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Ignition Service Kit

ES#2593715 - 077905115TKT4 - Ignition Service Kit - Includes eight Bremi coil packs and eight Bosch spark plugs - Assembled By ECS - Audi

Includes eight Bremi coil packs and eight Bosch spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593715
Mfg#:
077905115TKT4
In Stock
$319.99

This product was last offered at the strikethrough price on
04-09-2026

$309.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3545345 - 3519 - Radiator - Fix leaks and keep your cooling system efficient - Featuring OEM specified Plastic Tank/Aluminum Core Construction - CSF - Audi Porsche

Fix leaks and keep your cooling system efficient - Featuring OEM specified Plastic Tank/Aluminum Core Construction affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits models with DSG (S-Tronic) transmission only

Brand:
CSF - Corporate Logo
ES#:
3545345
Mfg#:
3519
In Stock
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

HJS Tuning 2.5" High-Flow ECE Downpipes

ES#3508359 - SSXAU725 - HJS Tuning 2.5" High-Flow ECE Downpipes - Featuring HJS Tuning 200cpsi ECE-approved sports cat - Fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring HJS Tuning 200cpsi ECE-approved sports cat - Fits with OE and Milltek cat-back systems. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
3508359
Mfg#:
SSXAU725
Ships in 3 Business Days
$5244.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#4668220 - 06E121018K - Water Pump - New water pump with coolant housing, does not include pulley - Pierburg - Audi Volkswagen

New water pump with coolant housing, does not include pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from the 2013 model year (facelift)

Brand:
Pierburg - Corporate Logo
ES#:
4668220
Mfg#:
06E121018K
Ships on Jul 28, 2026
Auto Notify
$168.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Ultimate Audi B9 Street Shield Kit

ES#3612458 - 019207ecs01KT5 - ECS Tuning Ultimate Audi B9 Street Shield Kit - Get the ultimate under body protection for your B9! - ECS - Audi

Get the ultimate under body protection for your B9! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3612458
Mfg#:
019207ECS01KT5
In Stock
ON SALE!
$1045.99

This product was last offered at the strikethrough price on
06-13-2026

$1014.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#4057428 - 07L905163C - Camshaft Position Sensor - Located in the cylinder head - Facet - Audi Volkswagen

Located in the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Facet - Corporate Logo
ES#:
4057428
Mfg#:
07L905163C
In Stock
$35.99

This product was last offered at the strikethrough price on
05-07-2026

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS High Performance Red Ignition Coil For Gen3 TSI - Priced Each

ES#4419973 - CTS-IGN-007 - CTS High Performance Red Ignition Coil For Gen3 TSI - Priced Each - These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it™s peak performance. - CTS - Audi Volkswagen

These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it’s peak performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4419973
Mfg#:
CTS-IGN-007
Ships in 3 Business Days
$39.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Check Valve

ES#284337 - 079103175C - Oil Check Valve - Located under the valley pan, controls oil flow to the cylinder heads - Genuine Volkswagen Audi - Audi

Located under the valley pan, controls oil flow to the cylinder heads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284337
Mfg#:
079103175C
In Stock
14% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$111.67

This product was last offered at the strikethrough price on
06-13-2026

$95.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug - Set Of Eight

ES#3191 - BKR6EQUP 8 - Spark Plug - Set Of Eight - Keep your engine running strong with platinum spark plugs - NGK - Audi BMW

Keep your engine running strong with platinum spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
3191
Mfg#:
BKR6EQUP 8
In Stock
$73.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#2143508 - 07L905163C - Camshaft Position Sensor - Located in the cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

Located in the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2143508
Mfg#:
07L905163C
Ships in 1-2 days
13% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$116.64

This product was last offered at the strikethrough price on
12-15-2025

$100.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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